Surf Forecasts:
Jaconé surf forecast from 11 Sep 2026:
- Best quality surf: Friday 11 Sep, 3AM (local time) - 4.5ft (1.4m), 15s period, S swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 3AM (local time) - 6.5ft (2.0m), 13s period, S swell with 1,440 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 3AM (local time) - 4.5ft (1.4m), 15s period with S swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 3AM. The primary swell is predicted to be 1.4m and 15s period with a secondary swell of 0.6m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 2.0m 13s and forecast to arrive on Friday (Sep 18) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Thursday (Sep 17) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 11th Sep) | 4.5ft (1.4m) 15s |
| Best Surf | 3AM (Fri 11th Sep) | 4.5ft (1.4m) 15s |
| Most Powerful | 3AM (Fri 18th Sep) | 6.5ft (2.0m) 13s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright, Rusty here, let’s get into it.
So the next few weeks are pretty hit and miss, but there is a clear window of solid swell for Jaconé if you time it right. The opening days this Friday 11th are clean and fun, with a solid, long-period S swell in the 4ft range. The water temps are about average for this time of year, nothing wild. Friday morning is glassy with that light WSW wind, and the combo of good energy (737) means the waves should have some punch and shape. Friday afternoon stays clean with a cross-off breeze and the swell holding. That’s your best bet early on.
Saturday 12th drops right off – small and onshore, not worth a paddle. Sunday 13th has a brief window with a clean, cross-off morning, but the swell is small at 3ft. By Sunday afternoon, a bigger 5ft SSW swell arrives, but it’s crossed up with some rain and moderate wind. Monday 14th morning cleans up nicely with offshore ENE wind and a 5ft S swell – solid conditions, and Monday afternoon is even cleaner with glassy conditions and very good surf. Tuesday 15th morning keeps the clean theme going with 5ft SE swell, but it’s short period (8 seconds), so the waves will be a bit sectiony.
The standout period is Thursday 17th through Friday 18th. Thursday morning sees a 5ft S swell with clean cross-off wind, but the afternoon is the real talker – a 7ft S swell hits with a 12-second period and massive energy (1393). This is a proper groundswell, with real power. Because it’s a beach setup, that long period can make it wall up, but with clean cross-off wind, it’s going to be good. Friday 18th morning has offshore wind at 30 km/h and 6ft S swell – that’s expert territory with sets over 8ft, so only for the experienced crew.
After that, Saturday 19th drops back to smaller clean waves around 3ft to 3ft, good for a cruise. Sunday 20th picks up again with a short-period 6ft E swell, still clean.
From Monday 21st into Tuesday 22nd, the energy fades and conditions get ordinary – glassy but weak. The next real spark is Wednesday 23rd morning: a glassy 5ft S swell with 10-second period and moderate energy (545). That’s a nice clean session if you can get out. It drops off again into the final days of the outlook, with small, onshore wind messing things up by Friday 26th when a bigger 6ft SSW groundswell arrives but with strong onshore wind making it ugly.
Overall, the best bet is Friday 11th for clean, fun waves, and the absolute standout is Thursday 17th afternoon into Friday 18th morning for the biggest, cleanest swell of the period – but those are for experienced surfers only when the swell pushes over 8ft.
- Rusty
Short Range ForecastHeavy rain (total 33mm), heaviest during Thu night. Warm (max 26°C on Fri night, min 19°C on Sun afternoon). Winds increasing (calm on Fri morning, fresh winds from the WSW by Fri night). | Days 5-7 Weather SummaryHeavy rain (total 70mm), heaviest during Mon night. Warm (max 22°C on Tue morning, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 16 | S 14 | S 13 | S 12 | S 12 | S 11 | S 11 | SW 8 | SSW 10 | S 9 | S 9 | SSE 9 | SE 8 | SE 8 | SE 8 | S 10 | S 8 | S 12 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 402 | 694 | 591 | 299 | 174 | 116 | 83 | 95 | 502 | 515 | 292 | 297 | 321 | 363 | 299 | 113 | 173 | 292 | 311 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-off | off | cross-on | on | cross-on | cross-off | cross | cross-off | off | cross-off | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross |
High Tide | 2:06AM1.09m | 2:59PM1.00m | 2:38AM1.11m | 3:15PM0.97m | 3:11AM1.10m | 3:31PM0.94m | 3:44AM1.06m | 3:49PM0.92m | 4:19AM0.99m | 4:10PM0.88m | 4:56AM0.91m | 4:35PM0.84m | |||||||
Low Tide | 8:38AM-0.03m | 8:46PM0.21m | 9:13AM0.02m | 9:18PM0.17m | 9:47AM0.10m | 9:50PM0.15m | 10:21AM0.19m | 10:25PM0.15m | 10:56AM0.29m | 11:03PM0.17m | 11:36AM0.38m | 11:49PM0.21m | |||||||
 |  | |  |  |  | |  |  |  |  |  | | | |  | | |  | |
 | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — |
 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — |
mm | 20 | — | — | 1 | — | 1 | 5 | — | 6 | 9 | 3 | 21 | 31 | 2 | — | — | 2 | 2 | 4 |
Temp °C | 22 | 24 | 25 | 26 | 25 | 23 | 21 | 21 | 19 | 19 | 21 | 20 | 20 | 22 | 22 | 20 | 21 | 21 | 20 |
Feels °C | 24 | 26 | 28 | 28 | 26 | 23 | 22 | 22 | 19 | 18 | 22 | 23 | 20 | 24 | 23 | 21 | 22 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 14 | S 13 | S 12 | S 12 | S 11 | S 5 | SW 8 | SSW 10 | S 9 | S 9 | SSE 9 | SE 8 | SE 8 | SE 8 | ESE 8 | S 8 | S 10 | S 11 |
| kJ | 368 | 694 | 591 | 299 | 174 | 116 | 31 | 95 | 502 | 515 | 292 | 297 | 321 | 363 | 299 | 100 | 173 | 181 | 311 |
Swell 2 Height (m) Direction Period (s) | S 16 | E 8 | E 8 | E 8 | E 8 | E 8 | S 11 | S 10 | E 9 | S 15 | S 13 | S 13 | S 12 | S 11 | S 10 | S 10 | ESE 8 | S 12 | S 5 |
| kJ | 402 | 28 | 44 | 55 | 46 | 32 | 83 | 49 | 39 | 4 | 55 | 83 | 180 | 191 | 130 | 113 | 49 | 292 | 47 |
Swell 3 Height (m) Direction Period (s) | E 7 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | E 8 | E 9 | — | S 15 | — | — | SSE 8 | S 13 | — | SSE 9 | S 13 | E 8 | ESE 8 |
| kJ | 39 | 15 | 14 | 13 | 12 | 12 | 21 | 39 | — | 4 | — | — | 70 | 29 | — | 54 | 126 | 45 | 61 |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 8 | — | SSW 3 | SSW 5 | S 7 | — | E 8 | E 7 | ESE 7 | SE 8 | — | SW 3 | WSW 5 | SW 6 | SW 6 | — |
| kJ | — | — | — | 226 | — | 4 | 46 | 48 | — | 36 | 134 | 191 | 232 | — | 4 | 28 | 66 | 15 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 49 | 177 | 58 | 0 | 10 | 10 | 0 | 0 | 0 | 0 | 46 | 58 | 58 | 77 | 317 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.
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